1. Some software work better with more than 512.
2. Even surfing the internet is better with more
RAM.
3. Unless you plan on giving the child a new computer every year, in a couple of years (or less)
the child will be complaining that the computer is to slow because of the 512.
4. If you have the
RAM anyway, why not make it 2 gig.
5. With a clock speed of 2.8G, don't handycap it with 512
RAM.